Utility window bracket



P 25, 1951 M. PERRIN UTILITY WINDOW BRACKET 2 Sheets-Sheet 1' Filed July 15, 1948 .DZZLPerrizz wlll- I ATTORNEYS.

2 Sheets-Sheet 2 Filed July 15, 1948 M L Perri):

INVENTOR ATTORNEYS.

Patented Sept. 25, 1951 'v UNITED STATES PATENT OFFICE 2,568,968 UTILITY WINDOW BRACKET Malcolm Lee Perrin, Oklahoma City, Okla. Application July 15, 1948, Serial No. 38,930

or the like whichusually damage window frames.

Still another object of the invention is to provide a bracket which maybe readily removed and folded into a small and compact article for storage or transportation.

With the foregoing and other objects in view which will appear as the description proceeds, the invention consists of certain novel details of construction and combinations of parts, hereinafter more fully described and pointed out in the claim, it being understood that changes may be made in the construction and arrangement of parts without departing from the spirit of the invention as claimed.

Referring to the drawings Figure 1 is a perspective view illustrating a bracket constructed in accordance with the invention as positioned within a window frame.

Fig. 2 is an enlarged fragmental perspective view illustrating the adjustable telescoping screw used in spreading the side bars of the bracket and forcing the shoes of the bracket, into close engagement with the walls of the sash guides.

Fig. 3 is a longitudinal sectional view through the securing screw.

Fig. 4 is a perspective view illustrating the bracket as supported at a point appreciably above the window sill.

Fig. 5 is a perspective view illustrating one end of the securing screw prior to positioning the securing screw in the opening of the shoe of the device.

Fig. 6 is a fragmental perspective view illustrating a modified form of the invention.

Referring to the drawings in detail, the bracket comprises a pair of parallel side bars 5 constructed preferably of angle bar material, the bars 5 being held in proper spaced relation with respect to each other, by means of the transverse bars 6 spaced such distances apart that they will provide supports for trestle boards which may be used as a scaffold, or used for supporting window boxes, potted flowers, or the like.

. 1 Claim. (Cl. 248-236) The inner ends of the side bars 5 are formed 2 of the bolts 8 and 9 extend, the reduced ends! being of lengths to extend into openings of -.the shoes Illv that are of widths to fit between the guide bars H of the sash frame. These shoes H! are formed with serrated edges that present teeth which bite intothe wall of the sash guide, securing the shoes in position. H

The bolt;8 is provided with a plurality of spaced openings 12 and is of a diameter to fit within the tubular member 13 which is formed with openings to accommodate the pin I4, the openings of the tubular member I3 registering with openings l2 of the bolt 8, securing the tubular member I3 in various positions of longitudinal ad; j ustment, with respect to the bolt 8. M -The bolt 9 is threaded throughout the major portion of its length and extends into the opposite end of the tubular member l3, the bolt 9 being formed with threads that accommodate the adjusting nut [5 which engages the end of the tubular member l3, as clearly shown by Fig. 3 of the drawings.

Due to this construction, it will be seen that when the bolts 8 and 9 and the tubular member l3 have been properly positioned, and the nut l5 operated to spread the bars 5, the shoes will be securely held within the sash guides of the window frame, thereby securing the inner end of the bracket to the window frame.

Openings I6 are formed in the bars 5 adjacent to the outer ends thereof, which openings accommodate the bolts I! that secure the upper ends of the inclined brace bars I8, to the bars 5.

At the lower ends of the bars l8 are cross pieces I9 that fit against the wall of the building with which the bracket is used, preventing the downward movement of the outer ends of the bars 5 and bracket. Rods 20 are connected with the brace bars l8 at points intermediate the ends of the brace bars, the upper ends of the rods 20 being formed into hooks that hook over the bars 5, as clearly shown by Fig. 1 of the drawings, preventing the brace bars l8 from moving downwardly under the weight of a person or articles on the bracket.

As shown by Fig. 1 of the drawings, the bracket is supported with the inner ends of the bars 5 disposed adjacent to the window sill. As shown by Fig. 4 of the drawings, the inner ends of the bars 5 are supported within the sash guides of a window, at a point directly above the upper edge of the lower sash of the window. In this showing, the bars l8 extend downwardly and the cross pieces l9 rest against the lower rail of the window frame directly above the window sill.

As clearly shown by Fig. 3 of the drawings, the reduced end 7 at one end of the bolt 8, defines a shoulder 2| that bears against the inner surface of the bar 5 associated therewith, to force the bar 5 and shoe associated therewith, towards the inner surface of the sash guide.

The reduced end 1 of the threaded bolt 9 defines an annular shoulder 22 which also bears against the bar, 5 associated therewith to force the bar and its shoe laterally.

In the form of the invention as shown by Fig. 6 of the drawings, arms 23 are welded or otherwise secured to the side bars 5 of the bracket frame, and these arms 23 are extended. downwardly, so that the inner ends of.the bars 5 con- 1 nected therewith, will rest againstthe'duter guide rail or guide bar of the sash guide, bracing the inner ends of the bars 5 of the bracket.

From the foregoing it .will be seen that dueto the construction shown and described, I have provided a' removable bracketwhich may be readily and easily positioned adjacent-to awindow,- and secured against movement with respect to the window frame, the bracket being'exceptionally strong to support the weight ofa person, when the device- 1s used as a scafioldor trestle board support.

It-will also be noted that-the bracket may be readilyand-easily removed by merely loosening the nut 15 and allowing the inner ends of the bars -5 to flex inwardly disengaging from within the sash guides of the-window.

Having thus described my invention, what is claimed is:

A portable window scaffold, comprising horizontal parallel supporting barsand transversely disposed bars connecting said supporting bars, channel-shaped shoes having their open sides disposed outwardly, secured to the outer surfaces of the supporting bars, said supporting bars and 5 channel-shaped shoes having registering openings, an expanding member including telescoping sections longitudinally adjustable with respect to each other, said telescoping sections havingreduced ends fitted within the openings 10 of the supporting bars and shoes, adapted to adapted torest'against a building with which the scaffold is used, and hooks pivotally connected with the'low'er brace bars and hooked over the rhorizontaLparallel supporting bars, holding the lower brace bars in predetermined spaced rela- 20 tion with respect to the parallel supportingbars.

MALCOLM LEE PERRIN.

REFERENCES CITED 25 The following references are of record in'the file of this patent:

UNITED STATES PATENTS Wittman eta1. May 9,1939 

